Electromechanical properties and molecular conformation in P(VDF-TrFE)-based terpolymer

Zhong-Yang Cheng; Hengfeng Li; Feng Xia; Haisheng Xu; Dana Olson; Cheng Huang; Qi Ming Zhang; G. J. Kavarnos

doi:10.1117/12.475162

11 July 2002 Electromechanical properties and molecular conformation in P(VDF-TrFE)-based terpolymer

Zhong-Yang Cheng, Hengfeng Li, Feng Xia, Haisheng Xu, Dana Olson, Cheng Huang, Qi Ming Zhang, G. J. Kavarnos

Proceedings Volume 4695, Smart Structures and Materials 2002: Electroactive Polymer Actuators and Devices (EAPAD); (2002) https://doi.org/10.1117/12.475162
Event: SPIE's 9th Annual International Symposium on Smart Structures and Materials, 2002, San Diego, California, United States

Abstract

The recent discovery of high electromechanical performance in high-energy electron irradiated P(VDF-TrFE) copolymers opens a new avenue for developing high performance electroactive polymers. From basic materials consideration, it is expected that one can achieve high electromechanical performance by means of nonirradiation approach, such as introducing ter-monomer to form PVDF based terpolymer. The basic requirement for the ter-monomer is discussed in order to achieve a high electromechanical performance in P(VDF-TrFE) based terpolymer. Based on the conclusion, P(VDF-TrFE-CFE) terpolymer has been synthesized and the experimental results indicate that the terpolymer exhibits better electromechanical performance compared with irradiated copolymers. For example, both the electric induced strain and Young's modulus in P(VDF-TrFE-CFE) terpolymer could be higher than that in irradiated copolymers. X-ray diffraction, DSC and FTIR were employed to determine the structure and molecule conformation. Furthermore, a serious theoretical simulation was carried out for P(VDF-TrFE) based terpolymers with different ter-monomers. The results show that indeed the terpolymer with CFE favors gauche conformation, consistent with the experimental results.

Citation Download Citation

Zhong-Yang Cheng, Hengfeng Li, Feng Xia, Haisheng Xu, Dana Olson, Cheng Huang, Qi Ming Zhang, and G. J. Kavarnos "Electromechanical properties and molecular conformation in P(VDF-TrFE)-based terpolymer", Proc. SPIE 4695, Smart Structures and Materials 2002: Electroactive Polymer Actuators and Devices (EAPAD), (11 July 2002); https://doi.org/10.1117/12.475162

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